* Add docs about how to freeze the weight of backbone or neck

* refine the docs

* refine the docs

* refine the docs

* Add Don't used pre-training weights to how_to

* refine docs of how_to

* refine doc of how_to
Co-authored-by: NRange King <RangeKingHZ@gmail.com>

* refine the doc

* refine the doc
Co-authored-by: NRange King <RangeKingHZ@gmail.com>

* how to set seed

* minor fix

* Update en how_to

* fix typos in zh_cn how_to

* add json args

* Update how_to.md

* Update test.py

* Update how_to.md

* Update how_to.md

* Update how_to.md

* delete toc

* Update how_to.md

* Update plugin.md

* Update how_to.md

* Update how_to.md

* replace todolist

* fix pretrained model link

* Update how_to.md

* refine configs

[Docs] Add examples of how to use the backbone from other repos in `how_to.md` and update `article.md` (#207)

* Update article.md

* Update article.md

* Update how_to.md

* Update how_to.md

* Refine zh_CN how_to.md

* Update EN how_to.md

* Refine comments in how_to.md

* Adjust the position of notes

* Update config.md

* Update docs/zh_cn/user_guides/config.md
Co-authored-by: Haian Huang(深度眸) <1286304229@qq.com>

* [Docs] Fix some error in how_to.md

* Update docs/zh_cn/advanced_guides/how_to.md
Co-authored-by: NRange King <RangeKingHZ@gmail.com>

* Update docs/zh_cn/advanced_guides/how_to.md
Co-authored-by: NRange King <RangeKingHZ@gmail.com>

* Update docs/zh_cn/advanced_guides/how_to.md
Co-authored-by: NRange King <RangeKingHZ@gmail.com>

* Update docs/zh_cn/advanced_guides/how_to.md
Co-authored-by: NHinGwenWoong <peterhuang0323@qq.com>

* Update yolov5_head.py

* Update yolox_head.py

* Update yolov5_head.py

* Update yolox_head.py

* Update docs/zh_cn/advanced_guides/how_to.md
Co-authored-by: Haian Huang(深度眸) <1286304229@qq.com>

* Update how_to.md

* Update yolov5_head.py

* Update yolox_head.py
Co-authored-by: Haian Huang(深度眸) <1286304229@qq.com>
Co-authored-by: NRange King <RangeKingHZ@gmail.com>
Co-authored-by: NHinGwenWoong <peterhuang0323@qq.com>

* add plugin layer

* add docstring. add config

* clean the config

* add how_to-doc

* add ut

* update

* update

* update lint

* fix yoloxbug

* update

* update

* update doc

* update

* update

* update

* update

* update